Related by context. Frequent words. (Click for all words.) 60 Harmony module 59 Spacewalkers 58 Discovery payload bay 57 Spacewalking astronauts 57 International Space Station 56 payload bay 56 spacewalking astronauts 56 commander George Zamka 56 orbiting complex 54 Dan Tani 54 Kibo 53 truss segment 53 Shuttle astronauts 53 orbital module 53 Canadarm2 53 Robert Behnken 53 orbiting outpost 53 spacewalk 52 Two spacewalking astronauts 52 shuttle payload bay 52 Zamka 52 robotic arm 52 shuttle Atlantis 52 orbital outpost 52 spacewalks 52 Eyharts 51 Greg Chamitoff 51 Mike Suffredini 51 generating solar arrays 51 Japan Kibo lab 51 Space Shuttle Atlantis 51 Mike Fincke 51 Space Shuttle Endeavour 51 Heidemarie Stefanyshyn Piper 51 Kibo lab 51 orbiting laboratory 50 Oleg Kononenko 50 Alpha Magnetic Spectrometer 50 Discovery astronauts 50 Gregory Chamitoff 50 Astronauts 50 Automated Transfer Vehicle 50 Space Shuttle Discovery 50 truss 49 orbiting 49 spacewalkers 49 commander Rick Sturckow 49 Lonchakov 49 Shane Kimbrough 49 Douglas Wheelock 49 Shuttle Discovery 49 Andrew Feustel 48 Rick Mastracchio 48 Scott Parazynski 48 Parazynski 48 orbiting observatory 48 ammonia coolant 48 ammonia tank 48 shuttle Discovery 48 solar arrays 48 Leroy Chiao 48 aboard Endeavour 48 Nicole Stott 48 shuttle underside 48 Robert Satcher 48 shuttle robotic arm 48 space shuttle Discovery 48 Commander Peggy Whitson 47 Walheim 47 6 #/#-hour spacewalk 47 Atlantis astronauts 47 Shuttle Endeavour 47 pad #A 47 ISS 47 space shuttle Atlantis 47 orbiter 47 Shuttle Atlantis 46 Frank De Winne 46 Piers Sellers 46 Yurchikhin 46 Julie Payette 46 Astronauts aboard 46 Baikonur Kazakhstan 46 Daniel Tani 46 Hoshide 46 John Grunsfeld 46 Space Station 46 ESA astronaut 46 orbiting lab 46 commander Peggy Whitson 46 airlock 46 Koichi Wakata 46 Launch Pad #A 46 Endeavour astronauts 45 Wakata 45 Doug Wheelock 45 Sandra Magnus 45 Dextre 45 Fuglesang 45 Curbeam 45 Fyodor Yurchikhin